KR100755776B1 - A tension device for cellular phone - Google Patents

Abstract

An elastic unit in a portable terminal is provided to increase elastic force and durability by using compressed springs as a main power source due to having strong elastic force and low displacement, instead of torsion springs. An elastic unit in a portable terminal comprises the first shaft member(10), the first cam member(20), the first compressed spring(30), the second shaft member(40), the second cam member(50), the second compressed spring(60), and a case(70). The first shaft member(10) has the first slope(12). The first cam member(20) has the second slope(22) which faces the first slope(12). The first compressed spring(30) pushes the first cam member(20) toward the first shaft member(10) so that the second slope(22) can push the first slope(12), and generates elastic force, which expands toward the first direction, to the first cam member(20). The second shaft member(40) has the third slope(42). The second cam member(50) has the fourth slope(52) which faces the third slope(42). The second compressed spring(60) pushes the second cam member(50) toward the second shaft member(40) so that the fourth slope(52) can push the third slope(42), and generates elastic force, which expands toward the second direction opposite to the first direction, to the second cam member(50). The case(70) contains a portion of the first shaft member(10), the first cam member(20), the first compressed spring(30), a portion of the second shaft member(40), the second cam member(50), and the second compressed spring(60).

Description

Elastic device for mobile terminal {A TENSION DEVICE FOR CELLULAR PHONE}

1 is an exploded perspective view of an elastic device according to one embodiment of the present invention;

Figure 2 is a perspective view of the coupled state of the elastic device shown in FIG.

3 is a perspective view of the cover removed from the elastic device shown in FIG.

4 is a perspective view showing the action of the elastic device shown in FIG.

<Explanation of symbols for main parts of drawing>

10: first shaft member 12: first inclined surface

20: first cam member 22: second inclined surface

24: first main part 30: first compression spring

40: second shaft member 42: second slope

50: second cam member 52: second inclined surface

54: third main part 60: second compression spring

70: case 72: partition wall

74: second part 76: fourth part

80: cover

The present invention relates to an elastic device for a mobile terminal, and more particularly, to an elastic device for generating an elastic force for automatically opening or closing a sub-body in a sliding type mobile terminal. It is for improving durability.

As a sliding type terminal, a sliding type portable wireless terminal is disclosed in Utility Model Application No. 2003-0000136.

The terminal disclosed in this application is adapted to change the direction of the pressing force in the opening or closing direction with respect to the guide means for guiding the sub body on the main body and the predetermined sliding position of the sub body between the sub body and the main body. It includes at least one elastic means is installed. And the elastic body can maintain the maximum open position or the maximum closed position without a separate stopper during the fully open or closed operation.

As such elastic means, a torsion spring, one end of which is fixed to the main body and the other end of which is fixed to the subbody, is adopted.

This torsion spring is fixed to the main body and the other end is fixed to the sub body, the elasticity of the torsion spring is applied over the entire moving distance of the sub body, the torsion spring is greatly tensioned and stretched. Therefore, while the operation is large for the smooth operation of the torsion spring, a torsion spring with a small elastic force is used, and two torsion springs are installed to compensate for the insufficient elastic force.

However, the torsion spring has a problem in that the displacement width is large due to its characteristics, and thus the normal function is lost or disconnected early due to the accumulation of fatigue due to the repeated operation.

The present invention has been made to solve the above problems, an object of the present invention is an elastic device for generating an elastic force to automatically open or close the sub body in a sliding type mobile terminal, the elastic force than the torsion spring This strong and durable compression spring is the main power source to improve the above problems.

The present invention for achieving the above object, the first shaft member having a first inclined surface;

A first cam member having a second inclined surface facing the first inclined surface;

A first compression spring for pushing the first cam member toward the first shaft member to push the second inclined surface to push the first inclined surface to generate an elastic force expanding in the first direction on the first shaft member;

A second shaft member having a third inclined surface;

A second cam member having a fourth inclined surface facing the third inclined surface;

The second cam member is pushed toward the second shaft member to push the fourth inclined surface to push the third inclined surface, thereby generating an elastic force that expands in the second direction opposite to the first direction on the second shaft member. A second compression spring for making; And

And a case for holding a portion of the first shaft member, the first cam member, the first compression spring, a portion of the second shaft member, the second cam member, and the second compression spring. An elastic device for a portable terminal is provided.

The first cam member or the case may be provided with a recess or protrusion for holding the end side of the first compression spring.

The second cam member or the case may be provided with a recess or protrusion for holding the end side of the second compression spring.

The case may include a portion of the first shaft member, the first cam member, the first compression spring, a portion of the second shaft member, the second cam member, and the second compression spring. A cover for covering in may be combined.

Hereinafter, a preferred embodiment of the elastic device of the present invention will be described with the accompanying drawings.

1 is an exploded perspective view of an elastic device according to one embodiment of the present invention, and FIG. 2 is a perspective view of a coupling state of the elastic device shown in FIG. 1.

The elastic device shown in this figure includes: a first shaft member 10 having a first inclined surface 12; A first cam member 20 having a second inclined surface 22 facing the first inclined surface 12; An elastic force that expands in the first direction to the first shaft member 10 by pushing the first cam member 20 toward the first shaft member 10 so that the second slope 22 pushes the first slope surface 12. First compression spring 30 for generating a; A second shaft member 40 having a third slope 42; A second cam member 50 having a fourth slope 52 facing the third slope 42; The second cam member 50 is pushed toward the second shaft member 40 so that the fourth inclined surface 52 pushes the third inclined surface 42 so that the second shaft member 40 is opposite to the first direction. A second compression spring 60 for generating an elastic force that expands in two directions; And a part of the first shaft member 10, the first cam member 20, the first compression spring 30, a part of the second shaft member 40, the second cam member 50, It consists of a case 70 for holding the second compression spring (60).

The first cam member 20 is formed with a first recessed portion 24 for holding and holding one end of the first compression spring 30, and the other end of the first compression spring 30 is inserted into the case 70 to hold it. The second recessed portion 74 is formed.

The second cam member 50 is formed with a third recess 54 for inserting and holding one end of the second compression spring 60, and holding the other end of the second compression spring 60 in the case 70. Fourth recessed portion 76 is formed.

In addition, a partition wall 72 for separating the first cam member 20 and the second cam member 50 is formed in the case 70.

In addition, the case 70 includes a part of the first shaft member 10, a first cam member 20, a first compression spring 30, a part of the second shaft member 40, and a second cam member. 50 and the cover 80 for covering the second compression spring 60 from the outside to prevent the separation of each member is coupled.

The elastic means having such a configuration is applied in place of the torsion spring of the sliding type portable terminal. That is, the protruding end of the first shaft member 10 is axially rotatable connected to the main body side of the mobile terminal, and the protruding end of the second shaft member 40 is axially rotatable connected to the sub body side.

Hereinafter, the operation of the elastic device having the configuration as described above.

3 is a perspective view of a state in which the cover is removed from the elastic device shown in FIG. 2, and FIG. 4 is a perspective view showing the action of the elastic device shown in FIG.

Since the first compression spring 30 and the second compression spring 60 generate an expansion force, the first shaft member 10 may be firstly moved through the first cam member 20 and the second cam member 50. It generates an expansion force for expanding the second shaft member 40 in the second direction in the direction.

In this state, when pressing force is applied to the end of the first shaft member 10 and the end of the second shaft member 40, the first shaft member 10 moves to the right and the second shaft member 40 moves to the left. do.

Accordingly, the first inclined surface 12 of the first shaft member 10 compresses the first compression spring 30 by pushing the second inclined surface 22 of the first cam member 20 and the second shaft member 40. ), The third inclined surface 42 compresses the second compression spring 60 by pushing the fourth inclined surface 52 of the second cam member 50.

Therefore, the distance between the protruding end of the first shaft member 10 and the protruding end of the second shaft member 40 is narrowed, and the first compression spring 30 and the second compression spring 60 are compressed to accumulate force. do.

In this state, when the pressing force applied to the end portion of the first shaft member 10 and the end portion of the second shaft member 40 is released, the elastic force of the first compression spring 30 is formed through the first cam member 20. It is transmitted to the first shaft member 10, the first shaft member 10 is expanded to the left, the elastic force of the second compression spring 60 is transmitted to the second shaft member 40 through the second cam member 50. The second shaft member 40 is expanded to the right.

As described above, the elastic device of the present invention has a superior elastic force and a long service life because the compression spring used as the main power source has a stronger elastic force and a smaller displacement width than the torsion spring.

The present invention has been described above by way of specific embodiments, but the present invention is not limited to the above-described embodiments, and those skilled in the art without departing from the gist of the present invention claimed in the claims. Anyone can make a variety of variations.

Claims (4)

A first shaft member having a first inclined surface; A first cam member having a second inclined surface facing the first inclined surface; A first compression spring for pushing the first cam member toward the first shaft member to push the second inclined surface to push the first inclined surface to generate an elastic force expanding in the first direction on the first shaft member; A second shaft member having a third inclined surface; A second cam member having a fourth inclined surface facing the third inclined surface; Pushing the second cam member toward the second shaft member to push the fourth inclined surface to push the third inclined surface to generate an elastic force that expands in the second direction opposite to the first direction on the second shaft member. A second compression spring for; And And a case for holding a portion of the first shaft member, the first cam member, the first compression spring, a portion of the second shaft member, the second cam member, and the second compression spring. Elastic device for a mobile terminal made of. The elastic device of claim 1, wherein the first cam member or the case is provided with a recess or a protrusion for holding an end side of the first compression spring. The elastic device of claim 1, wherein the second cam member or the case is provided with a recess or a protrusion for holding an end side of the second compression spring. The method of claim 1, wherein the case, a part of the first shaft member, the first cam member, the first compression spring, a part of the second shaft member, the second cam member, the first The elastic device for a mobile terminal, characterized in that the cover for coupling the compression spring from the outside.

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